Valve-spring-compressing machine



G. S. ROBERTS VALVE SPRING GOMPRESSING MACHINE Filed Jan. 31. 1922 2 Sheets-Sheet 1 l/Vl/E/VTOR WITNESSES 6.5. RQBEEZS' ATTORNEYS Oct. 9 1923.

G. S. ROBERTS VALVE SPRING COMPRESSING MACHINE 2 Shets-Sheet 2 Filed Jan. 31. 1922 ATTORNEYS so. u y n a split sleeve 5 which is slidably mounted -T0 all whom it may concern.

vention being to provide a time and labor saving device of this character.

Patented on. e, was.

l enonen s. Ronnn'rs,

laiasaa Arena orBEnn, onnooiv.

vALvE-srnIne-ooiurnnssine MACHINE.

Application filed January 31, 1922. Serial no. 532,987.

Be it known that l, GEORGE S. ROBERTS, a citizen of the *United States, and a reeldent of Bend. in the county of Deschutes and State of Oregon, have invented a new and Improved Valve-Spring-Compressing. Machine, of which the following is a full, clearand exact description.

This invention relates to improvements in spring compressing machines, particularly to that class of machines used in c0mpressing the valve springs of internal cornbustion engines for the purpose of assembling or disassembling the valvesfor grindin orrepairing, etc., an object of the in- A further object is to provide an attach-. ment for the machine in the form of a shim punch so that the same machine may be used either forcompressing valve springs ortor punching shims. p

A still further object is to prov de a machine of this character, which w1ll be exceedingly simple and practical in con struction, durable andefiicient muse, WllICll .Figure 2 is a viewinvertical section" therethrough Figure 3 is a top plan view thereof:

Figure 1 is a fragmentary view similar to;-Figur'e 3, showing the manner of use of my improved shim punching attachment; and i Figure 5 is ,a view partly in elevation and partly in sectionof the punching attachment. f

Referring" in detail to the drawings, I have indicated at 1. ahollowcolumn orv platform supported upon a base 2. which comprises a socket 3. receiving and holding the lower end of the colurnn and a plurality of legs supporting. the socket and integral. therewith; A; platform at is integral with.

strengthening webs 7.

upon the a platform, and which may be tightened by certain securing devices such as 6. to lock the sleeve and platform against vertical sliding'movenient on the standard.

The platform is provicledivith the usual A substantially U-shaped yoke 8 is likewise connected to a split sleeve 9 slidably mounted upon the standard above the platform 4; and capable of being locked in any desirable position upon the standard. The yoke 8 is pref erably connected by a for wardly extending web 10; to the sleeve 9. The ends offthe yoke provide mounting for a transverse shaft 11Qof angular cross section. A lever 12 is pivotally connected at one end to a bracket 13 fixed upon the intermediate portion of the yoke 8. A tie rod '1 connects the intermediate portion of the lever 12 with a lever 15. which has one end mounted in one of the legs of the base 2, as indicated at 16. The free end of the lever 15 is provided with a pedal 17 so that depression" of the pedal operates through the medium of the tie rod 1 1 to depress the lever12. I i V A plurality of compressing arms 18 are carried by the shaft 11 and are operable uponturning of the shaft to compress valve springs located onthe platform. These arms include bifurcated forward ends 19 adapted to conveniently engage with the conventional type of valve. Turning of the shaft 11is effected by a crank arm 20 fixed to the shaft anda depending hooked link 21 at the end ofthe crank arm which engages under ahooked lug 22 fixed to the upper face of the lever 12. i i A cross pin 23 mounted in anopenine in the web 10'may be selectively engaged by i any of thenotchesfit in a depending locking arm 25'pivoted to the lever 12' The manner of use of the'machineis as follows: Any suitable number of valve springs are positioned upon the platform or table t'u'nder the freeends of the arms 18. Depression of the pedal 17 will operate .through the connecting means above described to depress the lever 12. This lever in turn transmits power through the link 21 and the crank .armyQO. to turn the shaft 11 andpositively move the free ends of thearms 18downwardly toward the platform 1, thus compressing the springs to make possible: the disassembling or repair of the valves; on the. --table. The valve and the action of the springs to restore the arms and levers to their normal posi* tions. 7 i

It will be apparent that this machine might be conveniently adapted for use in connection with an ordinary work bench by simply shortening the column, providing the opening in the bench through which the column may pass and usingeither the platform 4 or the bench itself to work upon.

It has been heretofore suggested that the machine might be used'for punching shims as well as for compressing valve springs. In this connection, attention is called to Figures 3, l and 5 of the drawings, wherein it will be seen that I providea block 26 having a central opening therethrough and having a plurality of spring held plungers 27 of various sizes mounted in the upper portion of the block and extending into the opening. The movement of these plungers may be limited by'CI'OSS pins 28 carried thereby. Openings 29 in the lower portion of the block register with the plungers. Studs 30 are fixed to theunder face of the block 26 and are adapted to selectively register with and fit within any of a transverse series of openings 31 in the platform 4', in accordance with theplunger 27 which it is desired to depress. In other words, the

studs and openings permit transverse ad justment of the block 30. When the block is in place, the lever arm] 12 will. operate upon any one of the plungers 27 to depress the same, it of course being understood that the shims are interposed between the lower ends of the 'plungers and the openings 29 so that descent of the plungers will punch the shims.

Although I haveillustrated one of the preferred embodiments of my invention, it will be evident that various slight changes and alterations might be made inthe general form and arrangement of the parts described without departing from the invention and hence I do not wish to limit myself to the precise details set forth. but shall consider myself at liberty to make such slight changes and alterations as fairly fall within the spirit and scope of the appended claims.

I claim: a

1. In a machine of the class described, a platform, a plurality of pivotally mounted valve compressing 'armsadapted to cooperatewith the platform to compress valve springs, and pedal operated means for depressing the free ends of the arms.

2. In a machine ofthe class described, a platform, a plurality of pivotally mounted valve compressing arms adapted to c0- operate With the platform to compress valve springs, pedal operated means for depressing the free ends of the arms, and means for locking the arms in depressed position.

7 3. In a machine of the class described, a hollow standard, a vertically adjustable platform on the standard, a vertically adjustable yoke carried by the standard, a shaft journaled in the arms of the yoke, a plurality of compressing arms fixed to the shaft and extending over the platform, and

means for turning the shaft to depress the free ends of the arms.

t. In a machine of the class described, a hollow standard, a vertically adjustable platform on the standard, a vertically adjustable yoke carried by the standard, a shaft journaled in the arms of the yoke, a plurality of compressing arms fixed to the shaft and extending over the platform, means for turning'the shaft to depress the free ends of-the arms, and said arms including bifurcated free ends adapted to engage with a valve.

5. In a machine of the class described, a hollow standard, a vertically adjustable platform on the standard, a vertically adjustable yoke carried by the standard, a shaft journ aled in the arms of the yoke, a plurality of compressing arms fixed to the shaft 7 and extending over the platform, means for turning the shaft to depress the free ends of the arms, said arms including bifurcated free ends adapted to engage with a valve, said means including a lever fulcruming on the yokea crank arm fixed to the shaft, and

a hooked link carried by the crank arm engageable with the lever, and means for depressing the lever.

65. In a. machine of the class described, a hollow standard, a vertically adjustable platform on the standard, a vertically adjustable yoke carried by the standard, a, shaft journaled' in the arms of the yoke, a plurality of compressing arms fixed to the shaft and extending over the platfoirm, means-$01 turning the shaft to depress the free ends of the arms. said arms including bifurcated free ends adapted to engage with a valve,

said means including a lever fulcruming on the yoke. acrank arm fixed to the shaft, a hooked link carried by the crank arm engageable with the lever, means for depressng the lever, said last-mentioned means compressing a pedal operated lever at the base of the column, and a tie rod connecting the twolevers.

7.'In a machine of the class described. a

hollow standard, a vertically adjustable platform on the standard, a vertically adjustable' yoke carried by the standard, a shaft journaled in the arms of the yoke, a.

plurality of compressing arms fixed to the shaft and extending over the platform, means for turning the shaft to depress the free ends of the arms, said arms including bifurcated free ends adapted to engage with a valve, said means including a leverfulcruming on the yoke, a crank arm'fixed to the shaft, a hooked link'carried by the crank arm engageable with the lever, means for depressing the lever, said last-mentioned means compressing a pedal operated lever at the base of the column, a tie rod connecting the two levers, and means for locking the levers in depressed position.

8. In a machine of the class described, a hollow standard, a vertically adjustable platform on the standard, a vertically adjustable yoke carried by the standard, a

shaft journaled in the arms of the yoke, a plurality of compressing arms fixed to the shaft and extending over the platform, means for turning the shaft to depress the free ends of the arms, said arms including bifurcated free ends adapted to engage with a valve, said means including a lever fulcruming on the yoke, a crank arm fixed to the shaft, a hooked link carried by the crank arm engageable with the lever, means for depressing the lever, said last-mentioned means compressing a pedal operated lever at the base of the column, a tie rod connecting the two levers, a notched locking member carried by the first-mentioned lever, and a pin carried by the yoke adapted to be engaged by said locking member to hold the lever in depressed position.

9. In a machine of the class described, a

support, a platform mounted on the sup port, a shaft carried by the support, a plu-' rality of compressing arms secured to the pressing arms on the shaft, means for turning the shaft to depress the free ends of the arms, and means for locking the arms depressed.

11. In a machine of the class described, a platform, a hollow block sup-ported on the platform and adjustable transversely thereof, a plurality of spring held punchers mounted in the block, a compressing arm adapted to selectively operate uponany of the punchers, nd pedal operated means for depressing the arm.

12. In a machine of the class, described, a support having a yoke-shaped member at its upper end, a platform carried by the sup- .port adjacent its upper end, a lever pivotally mounted on the member, means for depressing the lever, a plurality of compress ing arms pivotally mounted in the said member, and means for connecting the arms with the lever to cause them to partake of the movement of said lever.

13. In a machine of the class described,

a support having a yoke-shaped member at 1ts upper end, a platform carried by the sup port adjacent the upper end thereof, a lever mounted on the member, means for depressing the lever, a shaft mounted in the said member, a plurality of compressing arms on the shaft, and a crank arm on the shaft and provided with a link having interlock- I ing engagement with said lever.

GEORGE S. ROBERTS. 

